Manuals / Black Box / Computer Equipment / Network Hardware

Black Box X.25 PAD-2 manual An access unit for private or public X.25 networks, #25120

Models: X.25 PAD-2

1 2
Download 2 pages 63.83 Kb
Page 1
Image 1

© 2000. All rights reserved. Black Box Corporation.

Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com • e-mail: info@blackbox.com

X.25 PAD-2

SYNC

CH3 CH2

DATA CH1

RESET

ERROR POWER

 

The most compact way to connect one or two RS-232 devices to X.25 or Frame Relay.

Key Features

Provides access to a packet-switched link for one or two RS-232 devices.

Local channels are modular, with top async data rate of 115.2 kbps.

Link channel is sync and can be either RS-232 (up to 128 kbps) or V.35 (up to 2 Mbps).

Can be configured for a large variety of applications with terminal-based menus.

Universal power supply.

Measures only 0.9"H x 2.1"W x 4.3"D (2.3 x 5.4 x 11 cm).

The X.25 PAD-2 gives one or two pieces of RS-232 equipment easy, cost-effective access to a

packet-switching network or device in a wide range of applica- tions. For example, it can serve as:

•A PAD (Packet Assembler/ Disassembler);

•An access unit for private or public X.25 networks;

•An access server for a mainframe’s X.25 ports;

•An async switch and contention manager; or

•A FRAD (Frame Relay Access Device).

It can also be used to run asynchronous data over Frame Relay, either in X.25 packets or directly (in SLIP protocol).

Two versions are available: The V.35 version (product code MX320A-HS) uses ITU V.35 for its channel-1 (sync packet-switched) interface, while the RS-232 model (MX325A-HS) uses RS-232/V.24. On all models, channel 1 (hidden from view in the above illustration) is a DB25 female connector, while

local async channels 2 and 3 are RJ-45 female connectors. The MX320A-HS comes with a short cable you can attach to the WAN port to patch it to a V.35-standard M/34 female connector. The X.25 PAD-2’s maximum data rate on channel 1 is 128 kbps for the MX325A-HS or 2 Mbps for the MX320A-HS.

Channel 1 is always DTE, but can be configured for either X.25 or Frame Relay. Channels 2 and 3 are always DCE but can be configured for SLIP or X.28.

The X.25 PAD-2 comes with a universal 115/230-VAC power supply, an RJ-45 to DB25 patch cable for configuration, and a manual. MX320 models should also come with a DB25 to M/34 patch cable for the WAN-link port.

In order to connect the PAD-2 to your equipment, you will also need an RS-232 or V.35 cable for channel 1, plus either (a) another special cable like the configuration cable or (b) one or two twisted- pair cables with modular adapters for channels 2 and 3.

Except for a single internal jumper that controls whether or not the X.25 PAD-2 resets itself to factory defaults when it powers up, you’ll configure the PAD-2 with a powerful terminal-based menu system . Just use the included configuration cable to attach the unit to a terminal or a PC running a terminal emulator, and you can tailor the PAD-2 for the requirements of almost any packet-switched application. The configuration firmware is covered in our “Packet Switching Guide”; if you don’t already have a copy, ask for one when you order.

The X.25 PAD-2 can also be monitored through its firmware, but it has six top-mounted LEDs that show you basic operating information at a glance: POWER, ERROR, SYNC, and three activity LEDs (one for each channel).

Although you should never have to do so, you can press the X.25 PAD-2’s RESET button to reset its internal circuitry and start its power-up self-test.

12/8/2000

#25120

Page 2
Page 1
Image 1
Black Box X.25 PAD-2 manual An access unit for private or public X.25 networks, #25120
Page 2

X.25 PAD-2 specifications

The Black Box X.25 PAD-2 is a high-performance packet assembler/disassembler (PAD) designed to facilitate reliable communication over X.25 networks. It serves as an interface between X.25 networks and local area networks (LANs), enabling seamless data transfer and enhancing network performance. With its robust features and advanced technology, the PAD-2 is ideal for businesses requiring robust and secure data transmission.

One of the primary features of the Black Box X.25 PAD-2 is its support for multiple protocols. The device is compatible with various networking standards, enabling organizations to connect their existing infrastructure. This versatility reduces the need for extensive network reconfiguration while allowing for smooth, uninterrupted communication between different systems.

The PAD-2 employs advanced error detection and correction protocols. It ensures that data packets are accurately transmitted and received, minimizing the risk of data loss. This feature is crucial for mission-critical applications where data integrity is paramount. The device also supports automatic retransmission of lost packets, further enhancing its reliability.

In terms of connectivity, the Black Box X.25 PAD-2 offers multiple interface options, including standard RS-232 serial ports and Ethernet connections. This adaptability allows users to integrate the PAD-2 into various network configurations, whether they are utilizing legacy systems or contemporary networking solutions.

The PAD-2 boasts a user-friendly interface, featuring an easy-to-navigate management console that allows network administrators to configure settings, monitor traffic, and troubleshoot issues efficiently. This reduced complexity enhances operational efficiency and minimizes downtime, as network professionals can quickly implement modifications to optimize performance.

Security is another significant characteristic of the Black Box X.25 PAD-2. It provides encrypted data transmission, protecting sensitive information from unauthorized access and ensuring compliance with industry standards and regulations. This attention to security reassures businesses that their data remains secure while being transmitted over potentially public networks.

Additionally, the PAD-2's high throughput capacity supports heavy data traffic, making it suitable for organizations with high-volume communication needs. It can efficiently manage multiple simultaneous connections, ensuring that network demands are met without compromising performance.

In conclusion, the Black Box X.25 PAD-2 stands out as a vital tool for organizations reliant on X.25 networks. With its robust features, comprehensive protocol support, reliable data transmission capabilities, and secure architecture, the PAD-2 is an essential resource for enabling efficient and secure communication in today's data-driven environment.